32 MAINTENANCE
5.12.3 CLEANING
Circulate a suitable solvent to dissolve and remove varnish and sludge.
5.12.4 INSTALLATION
1.
2.
5.13 GREASE
conforming to MIL-L-7866 for all parts except wheel bearings. Use wheel-bearing grease (WBG) for
lubricating the wheel bearings.
5.14 AXLE OIL
Use API-GL-5 lubricant with a viscosity of SAE 80W-90.
5.15 ENGINE LUBRICATION
Refer to Engine Operation and Maintenance Manual for recommended engine lubricating oil, service intervals,
and maintenance practices.
5.16 CONTROL ADJUSTMENTS
The engine speed governor and pressure regulator are preset at the Factory and normally require no
servicing. However, if it becomes necessary to make adjustments, use the following procedures:
5.16.1 DISCHARGE PRESSURE ADJUSTMENT
Unit must be in RUN mode before adjusting, and with the service valve(s)
closed.
To increase pressure, loosen locknut on pressure regulator adjustment screw
and turn screw clockwise. Lower the operating pressure by turning screw
counter-clockwise. Figure 5-3.
Check engine speed whenever pressure settings have been changed. Only the
unloaded pressure can be selected with the pressure regulating valve. Full and
part load pressures are a function of air usage.
5.16.2 ENGINE SPEED
Engine speed is controlled by the Sullivan-Palatek Electronic Controller (SPEC).
The full load and idle speeds are programmed at the Factory and there should
be no need for adjustment. If the machine is experiencing speed problems
please contact our Service Department.
RAISE
LOWER
PRESSURE REGULATING VALVE
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